Ice pick



BAMJSZ July l0, 1923.

l H. E. KEELER ICE PICK Filed Feb. 28 1923 Patented July 10, 1923.

PATENT: ofiflifcs..

HERBERT' 'FE1-'HIJ OF CHICAGO,` IIIJIJIlhT-(Ds:l

ICE' PICK".

Apglcatnneled -Februay 28;19231 Serial No. 621,817.

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Be-eknoiln the-i251; HERBERTEMJAHKEE@ LER, a citizen of the United States,.,rresdi11g ata-Clige; nz-.theiceuilty'fe f-.Gooky eedtete ofilllineseheye-in en edievcentainenewfwd I Pioksjnolf which atiohay te ice-*l e Pieke and -deeiredto;4 m-

01:1 heg-worin, Asethe inventiom iszfrpfllfi'foul-aily,y adaptedf to beeap'f pliedrf to@ anficee pielgg, L hayee illiustfiated-.jfV it andiwillildeseriheel jinethatffeasms. Icepfcks ame'knowminziwhlich ,a .chamberedgharid Ae-.fis sli-dinglygI mounted-upon a Y. pointed.- rod.; for impertingsa. hammerggblowe toit f, when; the handle-descends@ Insuch devi-ces, .it .isgeome mon to employ a*helicalcompressionespiring sozthatetheghandle meynieeL omini-tial positon, Whenathe pleseure 0151; the hand 1, is; n leased, Without simultaneously raising the rodi. Such'` an conSEuCtien-iie f shown; .in my prim#'Patentf1,437,425{jissuedDecemheiw5th, 192221: As oisdinaifily;l constructed, ice-fpicks havngshelieal; compeseionf spiings Within thefhandler fare aptteej 57Min,, dueeto .the buck,- linl'goffthe 1' Springe Accor(li-ng;to` :my pres,- ent 1:imiren-tiony ,the; @compreSsieimM-,springgis die:v pensed With and I haae--femployedfinsteed a. contractile-1101?'. tensioni epici-ng?,` and have therebyff avoided; the@ difficulty; mentionedY Gnewf'fthef-g objects@ of if my; inyention, 1 thener fore; .is :to :provide :a: zvspring of l such. charac.- ten-that.bucleling."l onej amming, will fbeuawoidedili Anotherfobjeetwof the -inven-tie-x-misfto provi-'des meansfbgfvwhfich the handle may be rota-'ted indeplendentlyof the@- rodqwithout aiectingf; they spying; Invcarrying.; out f my 1p1-esemY inventixma the;v upper; end. et, the spring is; conneetedfgftoethe fupiegeigfportionf .of theirodiandithesflewerfend fthev spring is connecteditozntheeloferf; eition offgtheghanr delega. anchthe. connection atgongef` endrof the spring-ff a: fsiviveled with' theresulti` that reletiveirotatiombetween;,th handle and the rodi vWilli neitheef Wind?. Der.. 11n-Winde the spring, nor changegitegcondtion' changes,- tenistics:` Anothei'ggole my nxention isf-@tofpmvidesfspeeiel5d ffgceeelduetwn whiehgma'kei- .QSsibleetO-CQ Struct the vder vieee. economically; l afnd. expeditioilslyyr and renderethe;deviceedurable;Y nd eiiective.

1., ohian.; 0101]'eats;` loy the;l mechanism illustrated iu` the.rv accompanying;- drawings Figure l isa side View 1of =the-toolchiefl-y inY diametral section,`

Figure .f2 is ea; top Y plan. View.y

Fig-ure 3 isy a sectionall iview on xthevtdli-ne 3f-8A IFigure l.

Figure i is a VsideView ofthe Ecolla?which folfms one part o.f the swivel connectionhe. tween th e? springVV and the rod.,

lizgftirve;5.Y is a; sidevie-w f 0:6 the buSh'liIi-gi. Whichffomfnse;` closureA foi' rtl1e,.lowe1endJ of thefh-and-lefin the formrshown inxF-gule. l..

Fgurejis an, enlarged detailchiey in diametral sectioushowing the swivelhonrl Ileetionl Lbetween they spring vand Lthe .-rod;

Figure 7 is a side-wiew. chieflyinediametral section yshowing f a. modiied construction in which the,` partei' instead fof heim-g;,assembled through-thelowenend ofthe handle arefas.- sembled through the upper-endltheifeof.

Figure 8 v-isdetail View ofa simplied forni ,of connection-between the spring',4 and the rod. i

Like numerals denote like parte ,throughout the several Views.

In- Vthe form selected to ,illustra-te..` thein.- ventionesipeciallyy Figures l` toa 6 inclu.- sivee-the tooll iseaepointedmod,` although tools otherwise -orinedattheouter end may be substituted Withwlike..eifect soffar as .,the principle -ofntheinvention :is concerned A eh-amberedghansdle 2, having; ahead 1,3. ahthe top by `which it maybe grasped, is closed at the flower. end, by. a.. bushing'.v el shown, Sepa: rately. in ,Figure 5.` .Thishbushing isexterf nally threaded to. screw.intothe-lowe1-inter: nelly, threaded end ,of theihahdle and vhas ,a centerthore. adapted :to` vform a. guide. forthe ro dF l... This bushing also, forms all anchor for-. the: lowei`- endi ofa tension spring 6. While various; Y. forms of attachment. oft the springA to the. bueliingiymayghe; employedha si-iiple, coilstluctivon..A isz., shown in the drain ings. Accordingaotoo this design ,the bushing has' 2m :upward acingfshoulden between its upper g and lowenyende which; formegaii-ahutf meut f0.1? thetSpIIf-ngf and has ali.-t apenture 8 extendiifigo verticallyvv through-` it.. thlqough which the flower. endj-:bf tlie`.sp`i: ing iS passed@ Atits lowenextremity the; sprung" is p,een.e`d om; swaged to the. bushing, Withj. the. result that `l`falle.'spring andthe bushing arejfiifrnly fastened .togethel y spring.

The upper end of the bushing :forms a stop for limiting the outward movement of the collar 10 which is pinned or otherwise rigidly secured to the rod. The upper end of the spring is connected in a similar manner to a sleeve A12 which is shown separately in Figure 4 and on an increased scale in Figure 6. This sleeve seats upon a collar 14 pinned or otherwise rigidly fastened to the upper portion oit the rod 1. Said sleeve is loosely mounted upon the rod and tits loosely within the chambered handle. Consequently the handle and the sleeve may rotate independently. A second collar 16 is rigidly secured to the rod 1 above sleeve 12. While the manner of securing it may be varied, I have illustrated a form in which the upper end of the rod is screw threaded and the collar 16 constitutes a nut which screws down onto it. This nut is fastened in place by a pin 18. The important characteristic is that one end of the spring has a swiveled connection with the result that the rod in the handle may be rotated without tending to unwind or wind up the In the illustrated 'form it is the upper end of the spring which is provided with a swiveled connection.

In operation, when the parts are assembled as shown in Figure 1 the tension of the spring tends to eject the rod, the movement being limited by the collar 10 which engages the inner end o'lV the bushing 4. When the operator presses down upon the handle in order to impart a hammer-like blow to the upper end of the rod 1, the spring yields to permit it, and as soon as the pressure by the operator is released the parts will return Ato normal position7 shown in Figure 1. In

a device of this character it might well happen that a user would rotate the rod relatively to the handle, either by intention or accident, but with my device this would have no effect upon the spring. The sleeve 12 and rod 1 and handle 2 are all rotatable independently of each other, and nothing the operator can do will have any appreciable effect either to wind or unwind the spring. Thus it is impossible to damage the spring; an effect which might readily occur if both ends of the spring were rigidly fastened to their associated parts 1 and 2. My device may, therefore, be regarded as fool-proof, and as the spring is simply tensioned when the handle is lowered, there is no opportunity: for it to buckle or become jammed. The straining of the. spring instead of inducing a buckling actiontends to keep it straight.

l In the form shown in Figure 1 the parts 'are assembled from the lower end of the handle. In Figure 7 I have shown a construction in which the assemblage occurs Y:trom the `upper end oit' the handle. In this case the handle is closed at the bottom except Jfor an aperture 2O which forms a guide for the rod. The upper end of the handle is closed by a screw plug 22. The upper end of the spring is swiveled to the upper portion of the rod as before. At the lower end of the handle instead ofthe bushing 4 there is a bushing 24 which is secured to the lower portion of the handle by means oi a pin 26 or other appropriate means. The lower end of the spring is anchored to this bushing 24 and the general assemblage is such that the device operates upon the same principle as before, the blow in this case being imparted by the plug 22 which engages the upper end of the rod .1.

The form of swivel connection between the spring and the member to which it is connected may be simplified as, for example, in the form shown in Figure 8. Here the spring, instead of being connected to a loose sleeve, is simply looped around the shaft between the collars-14 and 16. The-loop 17 loosely encircles the shaft and hence permits it to rotate independently of the spring.

It will be evident that my device is not only proofagainst misoperation, but' is of simple form and has a .comparatively small number of parts. The parts are relatively simple to make and are rugged and durable, and there is little likelihood of any of them becoming out of order.

Having thus described my! invention what I claim as new and desire to secure by Letters Patent'is:

1. An ice pick having a pointed rod, a chambered handle slidably mounted on the rod and adapted to engage it for imparting a blow to it, atension spring connected at one end to the upper portion of the rod and at the other end to the lower portion ofthe handle, and means for limiting the outward movement of the rod. l

2. A n ice pick having a pointed rod, a chambered handle slidably mounted on the rod and adapted to strike it, a tension spring having at one end a connection to the upper portion of t-he rod and at the other end a lconnection to the lower portion of fthei handle, and means for limiting the outward movement of the rod, one of said connections being a swivel connection whereby the handle may be rotated relatively to the rod without affecting the spring.

3. An ice pick having a pointed rod, a chambered handle sl'idably mounted on it 'and adapted to strike it, a tensionspring connected at the lower end tothe lower portion of the handle, vand "a swivel connection between the upper end of the spring and the upper portion of the` rod. f

4. An ice pick having' a pointed rod, a

chambered handle slidingly mounted upon closed within the handle and encircling the rod, the lower end of the spring being anohored to the lower portion of the handle, and a sleeve swiveled to the rod at the upper portion thereof1 the upper end of the spring being secured to said sleeve.

5. Anice vpick having a pointed rod, a chambered handle slidably and rotatably f mounted upon the rod and adapted to de scend into abutting engagement with it, the lower end of the handle being apertured to form a guide for the rod, the handle being otherwise closed at the bottom, a collar fastened to the rod and adapted to engage the lower end of the handle for limiting the outward movement of the rod, and a helical tension spring located within the handle and encircling the rod and having a connection at one end to the upper portion of the rod and at the other end to the lower portion of the handle, one of said connections being swiveled whereby the handle and the rod may be rotated independently of each other without; producing any appreciable tortional effect upon the spring.

In witness whereof, I have hereunto subscribed my name.

HERBERT ELJAH KEELER. 

